a, b, c, d = map(int and str, input().split('-'))
p = str(a)
q = str(b)
r = str(c)
s = str(d)
l_1 = list(p)
l_2 = list(q)
l_3 = list(r)
sums = 0
li = l_1 + l_2 + l_3
for i in range(9):
f = int(li[i])
i += 1
sums = sums + i * f
extra = sums % 11
if extra == 10:
extra = 'X'
if str(extra) == s:
print('Right')
else:
print(f"{p}-{q}-{r}-{extra}")
